<p class="lead">You discovered the top quark!</p>
<h5><b>The top quark</b></h5>
<img class="img-responsive" src="assets/info/t.png" alt="A proton and an antiproton annhilate to form a top-antitop pair" align="center">

<p>
At 174.2 GeV/c<sup>2</sup>, the top quark is the heaviest particle we know of. It belongs to the third generation of quarks and has a charge of &frac23; times the electron charge. As a result of its large mass, it decays (mostly into bottom quarks) almost instantly after it is produced. This behemoth does not form bound states with other quarks or antiquarks.
</p>

<p>
It was discovered by the DØ and CDF collaborations at Fermilab in the US.
Nowadays, top quarks and their properties are studied intensively by ATLAS and CMS at CERN.
</p>

<h5><b>参考资料</b></h5>
<ul>
  <li><a href="http://en.wikipedia.org/wiki/Top_quark" target="_blank">The top quark on Wikipedia</a></li>
</ul>
